Typescript error - Can't find name 'Moralis'

I did all the steps required to use Moralis with react but and i get this Typescript error. What i miss ?

Error :

Failed to compile.

/Users/augustin/code/Etherum/Lottery/lottery/src/App.tsx
TypeScript error in /Users/augustin/code/Etherum/Lottery/lottery/src/App.tsx(41,13):
Cannot find name 'Moralis'.  TS2304

    39 |                        note: "Thanks for your participation"
    40 |                },
  > 41 |                msgValue: Moralis.Units.ETH(0.001)
       |                          ^
    42 |                }
    43 |                await Moralis.executeFunction(options);
    44 |                }

Code :

import React from 'react';
import logo from './logo.svg';
import './App.css';
import { useMoralis } from "react-moralis";





function App() {

    const { authenticate, isAuthenticated, isAuthenticating, user, account, logout } = useMoralis();

    const login = async () => {
      if (!isAuthenticated) {

        await authenticate({signingMessage: "Log in using Moralis" })
          .then(function (user) {
            console.log("logged in user:", user);
            console.log(user!.get("ethAddress"));
          })
          .catch(function (error) {
            console.log(error);
          });
      }
    }

    const logOut = async () => {
      await logout();
      console.log("logged out");
    }

		async function enter() {
	  	let options = {
		contractAddress: "0x9111eF993A41d97862E76E8A47FC4074E4907b50",
		functionName: "enter",
		abi: [{"inputs": [],"name": "enter","outputs": [],"stateMutability": "payable","type": "function"}],
		params:{
			note: "Thanks for your participation"
		},
		msgValue: Moralis.Units.ETH(0.001)
	  	}
		await Moralis.executeFunction(options);
		}

	return (
		<div>
			<h1>Moralis Hello World!</h1>
			<button onClick={login}>Moralis Metamask Login</button>
			<button onClick={logOut} disabled={isAuthenticating}>Logout</button>
			<button onClick={enter}>Enter</button>
		</div>
	);
}

export default App;

Thanks for your help guys :slight_smile:

Maybe you need to add Moralis here too, or use react hooks instead of using Moralis directly.